Range-resolved interferometric signal processing using sinusoidal optical frequency modulation

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dc.contributor.author Kissinger, Thomas
dc.contributor.author Charrett, Thomas O. H.
dc.contributor.author Tatam, Ralph P.
dc.date.accessioned 2016-05-04T14:15:52Z
dc.date.available 2016-05-04T14:15:52Z
dc.date.issued 2015-04-03
dc.identifier.citation Kissinger, T., Charrett, T. O. H. and Tatam, R. P. 2015, Range-resolved interferometric signal processing using sinusoidal optical frequency modulation, Optics Express, Vol. 23, Iss. 7, PP. 9415-9431 en_UK
dc.identifier.issn 1094-4087
dc.identifier.uri http://dx.doi.org/10.1364/OE.23.009415
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/9857
dc.description.abstract A novel signal processing technique using sinusoidal optical frequency modulation of an inexpensive continuous-wave laser diode source is proposed that allows highly linear interferometric phase measurements in a simple, self-referencing setup. Here, the use of a smooth window function is key to suppress unwanted signal components in the demodulation process. Signals from several interferometers with unequal optical path differences can be multiplexed, and, in contrast to prior work, the optical path differences are continuously variable, greatly increasing the practicality of the scheme. In this paper, the theory of the technique is presented, an experimental implementation using three multiplexed interferometers is demonstrated, and detailed investigations quantifying issues such as linearity and robustness against instrument drift are performed. en_UK
dc.language.iso en en_UK
dc.publisher Optical Society of America (OSA) en_UK
dc.title Range-resolved interferometric signal processing using sinusoidal optical frequency modulation en_UK
dc.type Article en_UK
dc.identifier.cris 4861039


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